Quote:
Originally Posted by MShift
Maybe I misunderstood and you may be right. I had interpreted "constant whistle" as always whistling throught the RPM range, not sitting at idle.
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The whistle only come out when you left the throttle.
Specially if you are in higher RPM. At idle the BPV is venting air, but you Just can't hear, cause it's not so much air.
Above 2k RPM you can hear the whistle, but only if you left the throttle off.
With WOT there is not any whistle, cause the BPV is closed to create pressure inside the system.